William a



(No Model.)

-W. A. SHORT & E. LALIME.

BALANCED VALVE;

Patented Aug. 2; 1887..

WITNESSES INVENTOR 3% 1 BY MW S ATTORNEYS.

our improvement,

UNITED STATES PAT NT OFFICE.

WILLIAM A. SHORT AND EUSEBE LALIME, OF MALONE, NEAV YORK.

BALANCED VALVE.

SPECIFICATION forming part of Letters Patent No; 367.557, dated August2, 1887.

Application filed April 29,1886. Serial No. 200,574.

To aZZ whom it may concern:

Be it known that we, WILLIAM A. SHORT and EUsEBE LALIME, of Malone, inthe county of Franklin and State of New York, have in vented a new andImproved Balanced Valve for Steam-Engines, of which the following is afull, clear, and exact description.

The object of our invention is to provide a new and improved cylindricalbalance-valve for stcan1-engines,whieh is simple in construction and iscompletely balanced when the engine is reversed.

The invention consists of a cage placed in the steam-chest and having avertical motion, and of a cylindrical slide-valve operating in the cage.

The invention also consists of various parts and details andcombinations of the same, as will be fully described hereinafter, andthen pointed out in the claims.

Reference is to be had to the accompanying drawings, forming apart ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures. 4

Figure 1 is a longitudinal central section of Fig. 2 is a verticalcrossseetion of the cage and slide-valve en the line or 0, Fig. 1. bolt.Fig. 4 is a plan view of the valve=rod, and Figs. 5 and 6 are sideelevations of the valve packing-rings.

The steamchest "A is provided with the usual valve-scat, B, and thesteamports 0, O, and C". On the valveseat is placed the cage D, whichhas a slight vertical motion between the seat B and the steam-chestcover E, being guided between the lugs or projections F on the sides ofthe steam-chest A. The cage D is provided with a central opening, G, inwhich slides the valve H, and is provided with the ports I, I, and I,which fit over the corre sponding ports 0, G, and O in the valveseat B.The cylindrical slide-valve H consists of the body H, to which aresecured the heads H by means of the bolt H, which is connected to thevalvebody H and is provided on one Fig. 3 is a plan view of the valve(No model.)

end with a recessed offset, H, into which fits the T end J of thevalve-rod J. Each end of the valve H is provided with three outpacifing-rings, K, placed one above the other, as shown in Fig. 1, andheld in place by a pin K, passing into the valve-body H.

It will be seen that the pressure of the steam on the valve H isequalized on both ends, as the steam in the steanrehest A can pass between the upper side of the cage D and the steam-chest cover E. If theengine is reversed, the back-messure of the steam from either of theports 0, O, or C will lift the cage D off of the seat B, and therebyrelieve the cage D and its slide-valve H from pressure. slides in thisshort upward movement between the lugs F, the interlocking ends H" and J"of the valve-bolt and the valve-rod permitting such moveinent.

Having thus fully described our invention, we claim as new and desire tosecure by Let ters Patent- 1. The cylindrical slide-valve H, consistingof the body portion H, the heads H, the bolt H, having the offset H forthe reception of the valve-rod,and the packing-rings K, placed one abovethe other at each end of the valve, substantially as herein shown anddescribed.

2. In a balance-valve for steam-engines, a steam-chest having inlet andoutlet ports and lugs or projections on its sides, and a valverod havinga T-end, in combination with a cage having inlet and outlet ports andbeing adapted to slide vertically between the lugs on the sides of thesteam-chest, a cylindrical valve having three paekingrings placed oneabove the other at each end and operating in the cage, and thevalve-bolt having a recessed projection in which fits the T-end of thevalve rod, substantially as shown and described.

\VILLIAM A. SHORT. EUSEBE LALIME.

\Vitnesses:

GEORGE W. PHILLIPS, HENRY V. R. FOOTE.

The cage

